296 Answered Questions for the topic Trigonometric Functions
Trigonometric Functions Trigonometry
08/07/17
Solve exactly on the interval [0, 2π). (Enter your answers as a comma-separated list.)
16 cos(2θ) = 16 cos^2(θ) − 9
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07/31/17
Find the values of the six trigonometric functions if the conditions provided hold.
cos(2θ) = 1/√2 (1 divided by square root 2)90° ≤ θ ≤ 180°
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07/31/17
find the exact values of the expressions without solving for x.
If sin(x) = 1/4 and x is in quadrantI,find the exact values of the expressions without solving for x.
(a) sin(2x)
(b) cos(2x)
(c) tan(2x)
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07/31/17
Find the exact value algebraically.
Find the exact value algebraically of sin(105°)
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Trigonometric Functions Trigonometry
07/31/17
Find the exact value of 17π/12
Find the exact value of 17π/12
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Trigonometric Functions Algebra 2
07/29/17
What is the angle of elevation θ when B has rappelled 75% of the way down the cliff?
A is standing 50 feet from the base of a 100-foot-tall frozen waterfall. B is rappelling down the ice face. Round the answer to the nearest tenth of a degree.
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Trigonometric Functions
07/29/17
if cosθ+cos∅=a and sinθ+sin∅=b than show that cos(θ+∅)= a²-b²/a²+b²
Plz help me to prove this...
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07/26/17
Find the area of the sector to the nearest square root
A sprinkler is designed to rotate 360 degrees clockwise, and then 360 degrees counterclockwise to water a circular region with a radius of 12 feet. The sprinkler is located in the middle of the...
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07/23/17
Identify the asymptotes in the graph f(x) = −5 cot(2x)
Identify the asymptotes in the graph f(x) = −5 cot(2x),(Enter your answers as a comma-separated list of equations.)
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Trigonometric Functions Trigonometry
07/18/17
Find all solutions in the inerval [0,360)
cos^2(theta)+8cos(theta)+5=0
Answer in degrees
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07/15/17
Trigonometry related doubt
the number of all possible ordered pairs (x,y),x,y belongs to R satisfying the system of equations x+y=2pi/3,cosx +cosy=3/2
Trigonometric Functions Trigonometry
07/12/17
Let f(x) = 2 sin (3x-pie/4) find the value of the phase shift
Let f(x) = 2 sin (3x-pie/4) find the value of the phase shift
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Trigonometric Functions
06/20/17
Cos(theta)=-1/2
What is theta in terms of pi
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06/01/17
Find the lengths of the diagonals of the rhombus without using the law of sines or law of cosines?
Quadrilateral ABCD is a rhombus with side of lengths 8cm. The measure of one angle of the rhombus is 157 degrees.
Find the lengths of the diagonals of the rhombus without using the law of...
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05/30/17
Which set of lengths will form a triangle with the greater area?
Using trigonometric methods (law of cosine/sine) or cosine/sine/tangent, determine which set of lengths will form a triangle with the greater area? Show work for both sets.
Set #1) 8 feet, 7...
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Trigonometric Functions
05/24/17
given tangent = <0 and secant = -5sqrt/2 what is the sine
need to find the six trigonometric functions given that Tan <0 and sec is the -sqrt of 5 over 2
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05/22/17
Where does a cosine graph with an "a" value =/= 1 start?
The function for a cosine graph is f(x)=a cos b (x-c) + d, and in the parent function of f(x)=cos x, the "a" value = 1. I was taught that in a cosine function the graph "starts" at (0, 1). Is this...
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Trigonometric Functions
05/18/17
If tan A=3, what is sin A?
In a right triangle, A is acute.
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Trigonometric Functions
05/12/17
write cos(5x) Cos (3x) as a sum of trigonometric functions
write cos5xcos3x as a sum of trigonometric functions
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Trigonometric Functions
05/08/17
In the problem, t is a real number and P = (x, y) is the point on the unit circle that corresponds to t. Find the exact value of the indicated trigonometric
In the problem, t is a real number and P = (x, y) is thepoint on the unit circle that corresponds to t. Find the exactvalue of the indicated trigonometric function of t.
(-√65/9, -4/9) Find cot...
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05/01/17
Trigonometric Functions
Identify the amplitude, period, phase shift and vertical shift (mean value over one period) of: f(x)=−5cos(4πx−12π)+3
(π is pi)
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04/28/17
Need help solving this math problem with trigonometric functions :)
Suppose the terminal point determine by t lies in the second quadrant and is (-24/25, y).
(a) Find y.
(b) Find the value of the 6 trigonometric functions at 837π + t
I believe the...
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Trigonometric Functions
04/27/17
4cos(2x-pi)=0 for -pi =< x =< pi
Solve to find the x intercepts of the function
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Trigonometric Functions
04/26/17
Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the high temperature of 96 degrees occurs at 3 PM and the average tempe
Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the high temperature of 96 degrees occurs at 3 PM and the average temperature for the day is 80 degrees....
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04/26/17
Advanced trig problem I'm having an issue with.
Ok so on a math work sheet we had a problem where there was two side lengths of a triangle, 63 and 91. The third side was only described as being traveled across by a plane with an average of...
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